/*******************************************************************************
jquery.mb.components
Copyright (c) 2001-2011. Matteo Bicocchi (Pupunzi); Open lab srl, Firenze - Italy
email: mbicocchi@open-lab.com
site: http://pupunzi.com

Licences: MIT, GPL
http://www.opensource.org/licenses/mit-license.php
http://www.gnu.org/licenses/gpl.html
******************************************************************************/

jQuery.fn.extend({
everyTime: function(interval, label, fn, times, belay) {
return this.each(function() {
jQuery.timer.add(this, interval, label, fn, times, belay);
});
},
oneTime: function(interval, label, fn) {
return this.each(function() {
jQuery.timer.add(this, interval, label, fn, 1);
});
},
stopTime: function(label, fn) {
return this.each(function() {
jQuery.timer.remove(this, label, fn);
});
}
});

jQuery.extend({
timer: {
guid: 1,
global: {},
regex: /^([0-9]+)\s*(.*s)?$/,
powers: {
// Yeah this is major overkill...
'ms': 1,
'cs': 10,
'ds': 100,
's': 1000,
'das': 10000,
'hs': 100000,
'ks': 1000000
},
timeParse: function(value) {
if (value == undefined || value == null)
return null;
var result = this.regex.exec(jQuery.trim(value.toString()));
if (result[2]) {
var num = parseInt(result[1], 10);
var mult = this.powers[result[2]] || 1;
return num * mult;
} else {
return value;
}
},
add: function(element, interval, label, fn, times, belay) {
var counter = 0;

if (jQuery.isFunction(label)) {
if (!times)
times = fn;
fn = label;
label = interval;
}

interval = jQuery.timer.timeParse(interval);

if (typeof interval != 'number' || isNaN(interval) || interval <= 0)
return;

if (times && times.constructor != Number) {
belay = !!times;
times = 0;
}

times = times || 0;
belay = belay || false;

if (!element.$timers)
element.$timers = {};

if (!element.$timers[label])
element.$timers[label] = {};

fn.$timerID = fn.$timerID || this.guid++;

var handler = function() {
if (belay && this.inProgress)
return;
this.inProgress = true;
if ((++counter > times && times !== 0) || fn.call(element, counter) === false)
jQuery.timer.remove(element, label, fn);
this.inProgress = false;
};

handler.$timerID = fn.$timerID;

if (!element.$timers[label][fn.$timerID])
element.$timers[label][fn.$timerID] = window.setInterval(handler,interval);

if ( !this.global[label] )
this.global[label] = [];
this.global[label].push( element );

},
remove: function(element, label, fn) {
var timers = element.$timers, ret;

if ( timers ) {

if (!label) {
for ( label in timers )
this.remove(element, label, fn);
} else if ( timers[label] ) {
if ( fn ) {
if ( fn.$timerID ) {
window.clearInterval(timers[label][fn.$timerID]);
delete timers[label][fn.$timerID];
}
} else {
for ( var fn in timers[label] ) {
window.clearInterval(timers[label][fn]);
delete timers[label][fn];
}
}

for ( ret in timers[label] ) break;
if ( !ret ) {
ret = null;
delete timers[label];
}
}

for ( ret in timers ) break;
if ( !ret )
element.$timers = null;
}
}
}
});

if (jQuery.browser.msie)
jQuery(window).one("unload", function() {
var global = jQuery.timer.global;
for ( var label in global ) {
var els = global[label], i = els.length;
while ( --i )
jQuery.timer.remove(els[i], label);
}
});